Cleaning device for yaw brake disc of wind turbine

Abstract

The present application provides a cleaning device for a yaw brake disc of a wind turbine, which relates to the technical field of wind power equipment, and includes a mounting frame, one end of which is connected to a cleaning mechanism, and the other end of which is connected to a base of the wind turbine. The cleaning mechanism includes a rotating cylinder, and the outer wall of the rotating cylinder is connected to the mounting frame. A connecting pipe is provided at the lower end of the rotating cylinder, and a cleaner is provided at one end of the connecting pipe away from the rotating cylinder, and the cleaner contacts the upper surface of the yaw brake disc. The cleaning mechanism of the present application can automatically clean the yaw control disc, and does not require staff to climb to clean the yaw brake disc, thereby protecting the safety of the staff and saving labor costs.

Description

Technical Field

[0001] The present application relates to the technical field of wind power equipment, and in particular to a cleaning device for a yaw brake disc of a wind turbine. Background Art

[0002] The yaw system of a wind turbine refers to a system that controls the direction of the wind turbine so that the wind direction is aligned with the leading edge of the wind turbine. The yaw system is generally composed of a yaw gear ring, a yaw brake disc, a yaw brake, etc. It is an important component of a wind turbine and is used to adjust the direction of the wind turbine so that it always faces the wind direction and captures wind energy to the maximum extent. The lubrication method of the yaw system of a wind turbine is usually centralized lubrication using a yaw greaser. The yaw greaser first lubricates the yaw pinion, and then uses the meshing action of the yaw pinion and the yaw inner gear ring to complete the lubrication of the yaw inner gear ring. As the wind turbine runs for a long time, the waste grease on the yaw inner gear ring will be scattered on the yaw brake disc, which will cause different friction coefficients on the upper and lower surfaces of the friction plate, ultimately causing abnormal noise and vibration when the unit is yawed.

[0003] The existing method of cleaning waste grease requires workers to climb to the location of the yaw brake disc and then process the grease on the surface of the yaw brake disc. High-altitude work poses a threat to the lives of workers. Utility Model Content

[0004] The cleaning device for the yaw brake disc of a wind turbine provided in the present application solves the problem of requiring manpower to climb up and clean the grease on the yaw brake disc.

[0005] The cleaning device for the yaw brake disc of a wind turbine provided in the present application comprises a mounting frame, one end of which is connected to a cleaning mechanism, and the other end of which is connected to a base of the wind turbine;

[0006] The cleaning mechanism comprises a rotating drum, the outer side wall of the rotating drum is connected to the mounting frame, and a connecting pipe is provided at the lower end of the rotating drum;

[0007] A cleaner is provided at one end of the connecting pipe away from the rotating cylinder, and the cleaner abuts against the upper surface of the yaw brake disc.

[0008] Furthermore, the cleaner comprises a mounting plate and a scraper strip, wherein the mounting plate is connected to the lower end of the connecting pipe, the mounting plate and the scraper strip are detachably connected, and the lower side of the scraper strip abuts against the upper surface of the yaw brake disc.

[0009] Furthermore, a slide groove is provided on the lower end surface of the mounting plate, and a sliding block matching the slide groove is provided on the upper end surface of the scraper strip.

[0010] Furthermore, a dirt collecting mechanism is provided on the lower side of the connecting pipe, and the dirt collecting mechanism can collect the dirt cleaned by the cleaner on the yaw brake disc.

[0011] Furthermore, the dirt collecting mechanism comprises a connecting rod and a collecting frame, the upper end of the connecting rod is fixedly connected to the connecting pipe, the collecting frame is arranged directly below the cleaner, and the collecting frame is located at the lower side of the yaw brake disc.

[0012] Furthermore, the width of the collecting frame is greater than the width of the yaw brake disc.

[0013] Furthermore, the connecting pipes, the cleaners and the dirt collecting mechanisms are each provided with two groups, and the two groups of connecting pipes are symmetrically arranged along the axial direction of the rotating drum.

[0014] Compared with the prior art, the beneficial effects of this application are embodied in:

[0015] The cleaning mechanism is connected to the base of the wind turbine set through a mounting frame, and one end of the cleaning mechanism away from the mounting frame contacts the surface of the yaw brake disc. The rotation of the base of the wind turbine set drives the cleaning mechanism to rotate, and the cleaning mechanism drives the connecting pipe to rotate. The cleaner on the connecting pipe moves relative to the yaw brake disc (when the cleaner moves, the yaw brake disc is stationary). The cleaner can clean the surface of the yaw brake disc. When the wind turbine set is working, the cleaning mechanism automatically cleans the yaw control disc through the power of the wind turbine set, and there is no need for staff to climb up to clean the yaw brake disc, which protects the safety of the staff and saves labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of this application;

[0018] Figure 2 A structural diagram of another perspective of the entire application;

[0019] Figure 3 This is a schematic diagram of the structure of the cleaner of the present application;

[0020] Figure 4 This is a schematic diagram of the structure of the waste collection mechanism of the present application;

[0021] Description of reference numerals:

[0022] 1: mounting frame; 2: cleaning mechanism; 21: rotating cylinder; 3: connecting pipe; 4: cleaner; 41: mounting plate; 42: scraper; 5: yaw brake disc; 6: dirt collecting mechanism; 61: connecting rod; 62: collecting frame; 7: slide groove; 8: slider; 9: threaded hole; 10: connecting plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0024] See also Figure 1-Figure 4 The cleaning device of the yaw brake disc of the wind turbine of the present application comprises a mounting frame 1, one end of the mounting frame 1 is connected to the cleaning mechanism 2, and the other end of the mounting frame 1 is connected to the base of the wind turbine;

[0025] The cleaning mechanism 2 comprises a rotating cylinder 21, the outer wall of the rotating cylinder 21 is connected to the mounting frame 1, and a connecting pipe 3 is provided at the lower end of the rotating cylinder 21;

[0026] A cleaner 4 is provided at one end of the connecting pipe 3 away from the rotating cylinder 21 , and the cleaner 4 abuts against the upper surface of the yaw brake disc 5 .

[0027] The mounting frame 1 is an L-shaped cylindrical rod, one end of which is connected to the outer wall of the rotating cylinder 21, and a connecting plate 10 is provided on the other end surface of the mounting frame 1. The connecting plate 10 is provided with a threaded hole 9. When connecting, the mounting frame 1 can be fixed to the base of the wind turbine by passing a bolt through the threaded hole 9;

[0028] In order to ensure the stability of the cleaning mechanism 2, two groups of mounting frames 1 are provided, and two groups of corresponding connecting plates 10 are also provided, and two threaded holes 9 are provided on each group of plates.

[0029] One end of the connecting tube 3 is fixedly connected to the bottom end of the rotating cylinder 21, and the other end extends downward along the axial direction of the rotating cylinder 21 to just above the surface of the yaw brake disc 5;

[0030] When the base of the wind turbine rotates according to the wind direction, the mounting frame 1 rotates with the base, thereby driving the rotating cylinder 21 to rotate, and the connecting pipe 3 at the lower end of the rotating cylinder 21 is driven to rotate, and the cleaner 4 at the lower end of the connecting pipe 3 also rotates, and the cleaner 4 and the yaw brake disc 5 move relative to each other. When the cleaner 4 rotates, the yaw brake disc 5 is in a stationary state, and the cleaner 4 rotates on the yaw brake disc 5 to clean the grease on the yaw brake disc 5;

[0031] Compared with the prior art, the present application uses the rotation of the wind turbine to drive the cleaning mechanism 2 to clean the yaw brake disc 5, which not only saves labor costs, but also does not require an additional device to provide power for the cleaning mechanism 2, thereby simplifying the structure of the entire device.

[0032] For further information, see Figure 3 The cleaner 4 includes a mounting plate 41 and a scraper strip 42 . The mounting plate 41 is connected to the lower end of the connecting pipe 3 . The mounting plate 41 and the scraper strip 42 are detachably connected. The lower side of the scraper strip 42 abuts against the upper surface of the yaw brake disc 5 .

[0033] The mounting plate 41 is an inverted step-shaped structure, and the end surface area of ​​the mounting plate 41 in contact with the connecting pipe 3 is large, which can ensure the stability of the connection between the mounting plate 41 and the first connecting pipe 3, while the end surface area of ​​the mounting plate 41 connected to the scraper strip 42 is small, in order to match the width of the scraper strip 42;

[0034] The mounting plate 41 is detachably connected to the scraper strip 42, so that when the scraper strip 42 needs to be replaced after cleaning the grease on the yaw brake disc 5 for multiple times or is damaged, the scraper strip 42 can be removed from the mounting plate 41 for replacement without replacing the entire cleaner 4, thereby reducing costs;

[0035] In order to improve the wear resistance and avoid serious wear on the surface of the yaw brake disc 5 , the scraper strip 42 may be made of rubber material.

[0036] For further information, see Figure 3 The lower end surface of the mounting plate 41 is provided with a slide groove 7, and the upper end surface of the scraper strip 42 is provided with a slider 8 matching the slide groove 7.

[0037] The connection direction between the slide groove 7 and the slider 8 is perpendicular to the movement direction of the scraper strip 42 , so when the scraper strip 42 scrapes grease from the yaw brake disc 5 , the slider 8 will not be separated from the slide groove 7 .

[0038] Furthermore, a dirt collecting mechanism 6 is provided at the lower side of the connecting pipe 3 , and the dirt collecting mechanism 6 can collect the dirt cleaned off the yaw brake disc 5 by the cleaner 4 .

[0039] In a possible implementation, the dirt collection mechanism 6 cooperates with the cleaner 4 to collect dirt, thereby preventing the dirt cleaned from the yaw brake disc 5 from contaminating other components of the wind turbine.

[0040] For further information, see Figure 4 The dirt collecting mechanism 6 includes a connecting rod 61 and a collecting frame 62 . The upper end of the connecting rod 61 is fixedly connected to the connecting pipe 3 . The collecting frame 62 is arranged directly below the cleaner 4 , and the collecting frame 62 is located at the lower side of the yaw brake disc 5 .

[0041] In a possible implementation, the upper end of the connecting rod 61 is connected to the lower end surface of the middle part of the connecting tube 3, extends downward along the axial direction of the rotating cylinder 21, approaches the lower surface of the yaw brake disc 5, and finally extends to the lower surface of the yaw brake disc 5. The collecting frame 62 is connected to the end of the connecting rod 61, and the collecting frame 62 is just located at the bottom of the cleaner 4 on the yaw brake disc 5;

[0042] Since the dirt collecting mechanism 6 is connected to the connecting pipe 3 , the dirt collecting mechanism 6 rotates together with the connecting pipe 3 , that is, the dirt collecting mechanism 6 and the cleaner 4 remain relatively still, so that the grease scraped off the yaw brake disc 5 and the dust swept off by the cleaner 4 fall into the collecting frame 62 .

[0043] Furthermore, the width of the collecting frame 62 is greater than the width of the yaw brake disc 5 .

[0044] In a possible implementation, when the cleaner 4 cleans the grease on the yaw brake disc 5, the cleaned grease will fall from the two side edges of the yaw brake disc 5. The width of the collection frame 62 is greater than the width of the yaw brake disc 5, which can ensure that the collection frame 62 can fully collect the grease and dust that fall from the two side edges of the yaw brake disc 5.

[0045] Furthermore, the connecting pipe 3 , the cleaner 4 and the dirt collecting mechanism 6 are each provided with two groups, and the two groups of connecting pipes 3 are symmetrically arranged along the axial direction of the rotating drum 21 .

[0046] Among them, the two groups of connecting pipes 3 are symmetrically arranged along the axial direction of the rotating cylinder 21, ensuring that the two groups of cleaners 4 can contact the surface of the yaw brake disc 5, thereby scraping off the grease on the surface of the yaw brake disc 5, and providing two groups of cleaners 4 and dirt collecting mechanisms 6 can improve the cleaning efficiency of the grease on the yaw brake disc 5.

[0047] The use process of the cleaning device of the yaw brake disc 5 of the wind turbine set of the present application is as follows: the mounting frame 1 is connected to the base of the wind turbine set by bolts, the wind turbine set detects the direction of the wind through the anemometer and wind direction meter and feeds back the signal to the fan control system, and the fan control system controls the operation of the yaw system according to the feedback signal, so that the frame drives the fan to actively move to the direction facing the incoming wind, so as to ensure the stable operation of the wind turbine set and improve the power generation of the wind turbine set. During the movement of the base, the yaw brake disc 5 remains stationary, and the base drives the mounting frame 1 to rotate, thereby driving the cleaning mechanism 2 to rotate, and the cleaner 4 of the cleaning mechanism 2 rotates on the upper surface of the yaw brake disc 5 to clean the upper surface of the yaw brake disc 5, and the cleaned dirt falls from both sides of the yaw brake disc 5 into the collection frame 62 of the dirt collection mechanism 6.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cleaning device for a yaw brake disc of a wind turbine, characterized in that: It comprises a mounting frame (1), one end of the mounting frame (1) is connected to a cleaning mechanism (2), and the other end of the mounting frame (1) is connected to a base of a wind turbine generator set; The cleaning mechanism (2) comprises a rotating cylinder (21), the outer side wall of the rotating cylinder (21) is connected to the mounting frame (1), and a connecting pipe (3) is provided at the lower end of the rotating cylinder (21); A cleaner (4) is provided at one end of the connecting pipe (3) away from the rotating cylinder (21), and the cleaner (4) abuts against the upper surface of the yaw brake disc (5).

2. The cleaning device for the yaw brake disc of a wind turbine according to claim 1, characterized in that: The cleaner (4) comprises a mounting plate (41) and a scraper strip (42); the mounting plate (41) is connected to the lower end of the connecting pipe (3); the mounting plate (41) and the scraper strip (42) are detachably connected; the lower side of the scraper strip (42) abuts against the upper surface of the yaw brake disc (5).

3. The cleaning device for the yaw brake disc of a wind turbine according to claim 2, characterized in that: The lower end surface of the mounting plate (41) is provided with a slide groove (7), and the upper end surface of the scraper strip (42) is provided with a sliding block (8) matching the slide groove (7).

4. The cleaning device for the yaw brake disc of a wind turbine according to claim 1, characterized in that: A dirt collection mechanism (6) is provided on the lower side of the connecting pipe (3), and the dirt collection mechanism (6) can collect dirt cleaned off the yaw brake disc (5) by the cleaner (4).

5. The cleaning device for the yaw brake disc of a wind turbine according to claim 4, characterized in that: The dirt collection mechanism (6) comprises a connecting rod (61) and a collection frame (62), the upper end of the connecting rod (61) is fixedly connected to the connecting pipe (3), the collection frame (62) is arranged directly below the cleaner (4), and the collection frame (62) is located at the lower side of the yaw brake disc (5).

6. The cleaning device for the yaw brake disc of a wind turbine according to claim 5, characterized in that: The width of the collecting frame (62) is greater than the width of the yaw brake disc (5).

7. The cleaning device for the yaw brake disc of a wind turbine according to claim 4, characterized in that: The connecting pipe (3), the cleaner (4) and the dirt collecting mechanism (6) are each provided in two groups, and the two groups of connecting pipes (3) are symmetrically arranged along the axial direction of the rotating drum (21).

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